jQuery Timepicker Addon

About

I recommend getting the eBook Handling Time as it has a lot of example code to get started. The quick and dirty:

To use this plugin you must include jQuery (1.6+) and jQuery UI with datepicker (and optionally slider).
Include timepicker-addon script located in the dist directory.
now use timepicker with $('#selector').datetimepicker() or $('#selector').timepicker().